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Vishay General Semiconductor - Diodes Division SMBJ150CAHE3_A/H
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- Part No.:
- SMBJ150CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150CAHE3_A/H.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,844
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Product details
Overview
SMBJ150CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 150 V standoff voltage (VWM), 167–185 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), <2.5 µA reverse leakage at VWM, and clamps to ≤243 V at 2.5 A IPPM - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ150CAHE3_A/H datasheet, SMBJ150CAHE3_A/H pinout, SMBJ150CAHE3_A/H application, or SMBJ150CAHE3_A/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature limit (TJ max = 150 °C), and bidirectional clamping behavior critical for surge immunity design in automotive-grade embedded systems.
Technical Context
This TVS operates as a voltage-clamping protector with symmetrical bidirectional avalanche breakdown - no polarity marking required. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
Designed for PCB-level ESD and lightning surge suppression, it meets UL 497B recognition (QVGQ2) and J-STD-020 MSL Level 1 (260 °C reflow). The device is rated for -55 °C to +150 °C operation and supports automated SMT placement via matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - maximum continuous reverse voltage before clamping begins; defines operating margin above system nominal voltage. |
| VBR (Breakdown Voltage) | 167–185 V at IT = 1 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots. |
| VC (Clamping Voltage) | ≤243 V at IPPM = 2.5 A (10/1000 µs) - peak voltage seen by protected circuit during surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy absorption capability under standardized 10/1000 µs waveform; defines single-event robustness. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - minimal standby current draw; avoids signal integrity degradation or battery drain in always-on circuits. |
| TJ max | +150 °C - maximum junction temperature; sets thermal derating boundary for high-ambient or high-duty-cycle applications. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; guides heatsinking requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no cathode/anode marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity - enables symmetric clamping. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; forms a non-polarized clamp across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., RS-485), or ungrounded DC rails without polarity concerns. |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports use in ADAS sensors, body control modules, and infotainment power rails. |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) when properly laid out - reduces need for cascaded protection stages. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking - simplifies manufacturing and eliminates handling overhead. |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial signal line protectors - accelerates end-product certification. |
Applications
| Industrial Sensor Interface | Automotive CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation cabinets exposed to relay coil flyback and EFT noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground, absorbing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Limits transient voltage to ≤243 V, preventing damage to precision ADCs and microcontroller GPIOs while maintaining signal fidelity below 150 V normal operation. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair in automotive body control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Paired SMBJ150CAHE3_A/H devices (one across each line-to-ground) provide symmetrical clamping without disrupting common-mode signaling. Use Value: Clamps transients within nanoseconds while preserving CAN bit timing integrity - validated under AEC-Q101 temperature cycling and humidity testing. |
| Telecom Line Card Protection | AC-DC Power Supply Input Stage |
|
Use Scenario: Shielding Ethernet PHY interface and management UART lines on telecom line cards from lightning-induced surges entering via RJ-45 ports. IC Role / Device Role / Timing Role: Bidirectional TVS installed at board edge, shunting surge current to ground before reaching magnetics and PHY IC. Use Value: Absorbs 600 W peak energy per line, meeting GR-1089-CORE Level 3 surge immunity with no signal distortion during normal 100BASE-TX operation. |
Use Scenario: Secondary overvoltage protection on bulk capacitor input stage of industrial AC-DC SMPS, supplementing MOV-based primary protection. IC Role / Device Role / Timing Role: Fast-acting clamp limiting transient overshoot after MOV clamping tail, preventing MOSFET gate oxide rupture during line swells. Use Value: Responds in <1 ns to suppress residual spikes up to 243 V, extending reliability of 600 V-rated bridge rectifiers and primary-side controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VBR/PPPM, identical SMB package and pinout. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive compliance requirements and lifecycle assurance is managed externally. |
| SMAJ150CAHE3_A/H | Same electrical specs but in smaller SMA (DO-214AC) package - lower power rating (400 W PPPM), higher RθJA (140 °C/W). | Lower surge handling margin; requires tighter layout control and reduced ambient temperature for equivalent thermal performance. | Choose only if board space is constrained and surge threat level is limited to IEC 61000-4-5 Level 2 (1 kV). |
Compared with SMBJ150CAHE3_A/H, the E3/52 variant offers identical protection performance without automotive qualification, while the SMAJ150CAHE3_A/H trades 33% lower pulse power and higher thermal resistance for 30% smaller footprint - making SMBJ150CAHE3_A/H optimal for AEC-Q101-compliant, high-energy surge environments.
Availability
SMBJ150CAHE3_A/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, telecom line cards, and AC-DC power supply input stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ150CAHE3_A/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered for AEC-Q101 compliance, UL recognition, and robust surge immunity in automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMBJ150CAHE3_A/H at its rated peak pulse current?
The SMBJ150CAHE3_A/H clamps to a maximum of 243 V at its specified peak pulse current of 2.5 A under the 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ150CAHE3_A/H suitable for automotive applications?
Yes, SMBJ150CAHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation note (1) on page 3 of document 88392. This qualification covers temperature cycling, humidity bias, mechanical shock, and ESD testing - making SMBJ150CAHE3_A/H appropriate for under-hood and cabin-mounted ECUs where reliability under thermal and vibration stress is mandatory.
How does the bidirectional nature of SMBJ150CAHE3_A/H affect its placement on a PCB?
The SMBJ150CAHE3_A/H has no polarity marking and functions identically regardless of orientation - enabling flexible layout in AC-coupled or differential signal paths. Unlike unidirectional TVS diodes, it requires no attention to cathode band alignment during placement, reducing SMT programming complexity and eliminating risk of reverse installation in high-volume manufacturing.
What is the maximum operating temperature for SMBJ150CAHE3_A/H?
The SMBJ150CAHE3_A/H has a maximum junction temperature (TJ max) of +150 °C and an operating junction/storage temperature range of -55 °C to +150 °C. This allows deployment in under-hood automotive environments and industrial enclosures with elevated ambient temperatures, provided thermal design accounts for its RθJA of 100 °C/W on standard copper pads.
Does SMBJ150CAHE3_A/H meet any safety agency certifications?
Yes, SMBJ150CAHE3_A/H carries Underwriters Laboratories (UL) recognition under standard UL 497B (file E136766) for both unidirectional and bidirectional protectors. This certification validates its suitability for use in telecom and industrial signal line protection where agency approval is required for end-equipment listing.
SMBJ150CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ150CAHE3_A/H FAQ
1.How can I place an order for SMBJ150CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150CAHE3_A/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBJ150CAHE3_A/H reliable?
The price and inventory of SMBJ150CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ150CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150CAHE3_A/H?
SMBJ150CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150CAHE3_A/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBJ150CAHE3_A/H?
For technical support, including SMBJ150CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150CAHE3_A/H requirements.
6.How does Aetrix verify that SMBJ150CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ150CAHE3_A/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBJ150CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ150CAHE3_A/H?
All SMBJ150CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150CAHE3_A/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBJ150CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMBJ150CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150CAHE3_A/H Tags
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